Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quantas entradas estão na coluna abaixo de 50s quando a média é 39,60?
 ###Tabelas: CREATE TABLE tenth_round (tenth_round_id AUTO_INCREMENT PRIMARY KEY, Pick INT, Team VARCHAR, Player VARCHAR, Position VARCHAR, College VARCHAR) CREATE TABLE financial_comparisons_between_top_10_banks_in_indonesia_-_2006 (financial_comparisons_between_top_10_banks_in_indonesia_-_2006_id AUTO_INCREMENT PRIMARY KEY, Bank VARCHAR, Asset INT, Loans INT, NPL Net VARCHAR, Deposits INT, Net Interest Income INT, Non-Interest Income INT, Net Profit INT, No. of Employees VARCHAR, No. of Branches/Offices INT, No. of ATMs VARCHAR) CREATE TABLE season_goalscorers (season_goalscorers_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Career VARCHAR, Goals (Caps) VARCHAR, Pct. INT, Playing status VARCHAR) CREATE TABLE batting_averages (batting_averages_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Matches INT, Innings INT, Runs INT, Average VARCHAR, Highest Score VARCHAR, 100s INT, 50s INT) CREATE TABLE tour_de_france (tour_de_france_id AUTO_INCREMENT PRIMARY KEY, Height (m.) VARCHAR, No. of times visited INT, No. of HC climbs INT, First time as HC climb INT, Most recent INT)  
SELECT 50s FROM batting_averages WHERE Average = 39.60